diff --git a/NEWS b/NEWS
index f147a8a0..d91d4247 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,4 @@
+* #4552 Allow to open images in Paint (marco)
 * #4518: Encode nickname in UTF-8 when writing it out to .sugar/*/config (smcv)
 * sugar-control: Use NM for radio on/off, check for superuser (erikos)
 
diff --git a/lib/sugar/bundle/activitybundle.py b/lib/sugar/bundle/activitybundle.py
index 8ba61fe0..ce1510f0 100644
--- a/lib/sugar/bundle/activitybundle.py
+++ b/lib/sugar/bundle/activitybundle.py
@@ -93,8 +93,8 @@ class ActivityBundle(Bundle):
                 self._path)
 
         if cp.has_option(section, 'mime_types'):
-            mime_list = cp.get(section, 'mime_types')
-            self._mime_types = mime_list.strip(';').split(';')
+            mime_list = cp.get(section, 'mime_types').strip(';')
+            self._mime_types = [ mime.strip() for mime in mime_list.split(';') ]
 
         if cp.has_option(section, 'show_launcher'):
             if cp.get(section, 'show_launcher') == 'no':